[gnome-builder] gtk: indicate if we landed on our target when loading text iter

[Christian Hergert <chergert src gnome org>]

commit 20e6ad71788bb1e74831d21055a48b29c8f9ec30
Author: Christian Hergert <christian hergert me>
Date:   Wed Dec 31 03:23:01 2014 -0800

    gtk: indicate if we landed on our target when loading text iter

 src/util/gb-gtk.c |   10 +++++++---
 src/util/gb-gtk.h |    8 ++++----
 2 files changed, 11 insertions(+), 7 deletions(-)
---
diff --git a/src/util/gb-gtk.c b/src/util/gb-gtk.c
index 10e7017..3055f39 100644
--- a/src/util/gb-gtk.c
+++ b/src/util/gb-gtk.c
@@ -34,14 +34,14 @@ struct ScrollState
  * the line offset does not need to exist. It will work forward as far as
  * possible on that line.
  */
-void
+gboolean
 gb_gtk_text_buffer_get_iter_at_line_and_offset (GtkTextBuffer *buffer,
                                                 GtkTextIter   *iter,
                                                 guint          line,
                                                 guint          line_offset)
 {
-  g_return_if_fail (GTK_IS_TEXT_BUFFER (buffer));
-  g_return_if_fail (iter);
+  g_return_val_if_fail (GTK_IS_TEXT_BUFFER (buffer), FALSE);
+  g_return_val_if_fail (iter, FALSE);
 
   gtk_text_buffer_get_iter_at_line (buffer, iter, line);
 
@@ -57,7 +57,11 @@ gb_gtk_text_buffer_get_iter_at_line_and_offset (GtkTextBuffer *buffer,
               break;
             }
         }
+
+      return (line_offset == 0);
     }
+
+  return FALSE;
 }
 
 static gboolean
diff --git a/src/util/gb-gtk.h b/src/util/gb-gtk.h
index 3dd6e88..21e3905 100644
--- a/src/util/gb-gtk.h
+++ b/src/util/gb-gtk.h
@@ -23,10 +23,10 @@
 
 G_BEGIN_DECLS
 
-void gb_gtk_text_buffer_get_iter_at_line_and_offset (GtkTextBuffer *buffer,
-                                                     GtkTextIter   *iter,
-                                                     guint          line,
-                                                     guint          line_offset);
+gboolean gb_gtk_text_buffer_get_iter_at_line_and_offset (GtkTextBuffer *buffer,
+                                                         GtkTextIter   *iter,
+                                                         guint          line,
+                                                         guint          line_offset);
 
 void gb_gtk_text_view_scroll_to_iter (GtkTextView *text_view,
                                       GtkTextIter *iter,